anonymous
  • anonymous
Find the exact real value of arccos((square root of 2)/2)
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
\[\arccos \left( \frac{ \sqrt{2} }{2 } \right)\]
Haseeb96
  • Haseeb96
arccos x = cos^-1 (x) now what you will do . just use your calculator first press shift button then go to the cos^-1 sign button then press these values you willl get your answer
anonymous
  • anonymous
But how do I do it without the use of calculator? :)

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Haseeb96
  • Haseeb96
well first you will divide sqrt 2 and 2 you will get 0.706 and now as you know the table of trigonometry there is cos 45= 0.707 So, we get it will be at 45 degrees.
anonymous
  • anonymous
45 degrees or pi/4, right?
Haseeb96
  • Haseeb96
45 is degree, but when we express its answer in radians we will say pi/4 Good job girl @mathway
jdoe0001
  • jdoe0001
yeap
anonymous
  • anonymous
Thank you @Haseeb96 !
Haseeb96
  • Haseeb96
Most welcome @mathway I am glad that i helped you in your problem :)
Haseeb96
  • Haseeb96
Do you have more questions ? if so tag me
anonymous
  • anonymous
I'll open a new question. :)
Haseeb96
  • Haseeb96
fine

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